After thinking about this some, basically I would suggest developing an educational program that may look something like this:

Create a “known” archaeological based scenario that requires the recognition of an unresolved problem.

This “site” posses an element(s) that will require one or more reconstructive experiment(s) to resolve.

Develop a testable hypothesis(s) that would resolve the conundrum

Test the hypothesis via experimentation.

Record the experiment thoroughly and postulate additional research possibilities

I would choose something that the students would be able to accomplish in the time allowed… but nothing that would require accumulated physical experience/skills in order to test (such as metallurgy, flintknapping, etc). Several scenarios come to mind such as certain construction elements that could be done on a small scale to extrapolate data from.
Questions for the students to ask such as: how do you think it looked?; how do you think it was constructed?; how would you design an experiment to test these theories?; would be part of the class experience
Models can be constructed out of many things such as foam core; cardboard; etc.
Hope this helps you a little.

The Aegean, cliffs, mountains and hot springs might present a bit of a challenge to the students? And wasn't it a big stone wall Leonidas et al were cowering behind (mysteriously missed out in 300, although seen briefly in the 'proper' (but equally camp) 1960s film) - what's that got to do with experimental archaeology on posts? }